sarah thomas, the mother of three from mississippi at the new orleans saints training camp as a referee. >> and she is a member of the league's referee training program in line for an official full-time job. "gma" anchor josh elliott has her story. >> here we go. >> reporter: in the bold black and white stripes and hair tucked under that plaque hat, the official looks exactly like every other one on the field. >> watch your step here, 17. little tight. little tight. >> reporter: 39-year-old sarah thomas, married mother of three is on the verge of history. >> are you a tomboy? >> i am a tomboy, yes. but i am married with two boys. >> reporter: poised to become the first ever full time female official for the national football league. >> where's mama? >> 72, you've got to move up on those pass plays. put your guard up. put your guard up. individually, i am a female. a lot of things set us apart. race, gender, different background. but collectively, we're out there for the same goal. >> reporter: for 15 years, on fir -- officiating grade school, high school, and college games. discovered b